Re: [PATCH 29/30] i7300_idle: deprecate pci_get_bus_and_slot()

From: Greg Kroah-Hartman
Date: Wed Nov 22 2017 - 11:45:46 EST


On Wed, Nov 22, 2017 at 11:15:47AM -0500, Sinan Kaya wrote:
> On 11/22/2017 2:53 AM, Greg Kroah-Hartman wrote:
> >> +++ b/include/linux/i7300_idle.h
> >> @@ -48,7 +48,7 @@ static inline int i7300_idle_platform_probe(struct pci_dev **fbd_dev,
> >> int i;
> >> struct pci_dev *memdev, *dmadev;
> >>
> >> - memdev = pci_get_bus_and_slot(MEMCTL_BUS, MEMCTL_DEVFN);
> >> + memdev = pci_get_domain_bus_and_slot(0, MEMCTL_BUS, MEMCTL_DEVFN);
> > You have a pci_dev, why can't you use it here to get the domain?
> >
>
> Both fbd_dev and ioat_dev are output parameters.
>
> dmadev = pci_get_bus_and_slot(IOAT_BUS, IOAT_DEVFN);
> memdev = pci_get_bus_and_slot(MEMCTL_BUS, MEMCTL_DEVFN);
>
> for (i = 0; fbd_ioat_list[i].vendor != 0; i++) {
> if (dmadev->vendor == fbd_ioat_list[i].vendor &&
> dmadev->device == fbd_ioat_list[i].ioat_dev) {
> if (!(fbd_ioat_list[i].enabled || enable_all))
> continue;
>
> if (fbd_dev)
> *fbd_dev = memdev;
> if (ioat_dev)
> *ioat_dev = dmadev;
>
> Funny thing is nobody is calling this function. Maybe, I should just kill it
> instead.

Yes, delete it. Why doesn't the build warn about it not being used?

thanks,

greg k-h